William h



w. H. WHITEHEAD.

GasBu'rning Coal-Stove.

Pafemd AugQn, 1868.

//v Vf/v zon WILLIAM H. W'HI'IE-HEADQVOF GIII'CAGO, ILLINOIS.

Letters .Paten-t No. 81,043, dated August 11,1868.

IMPROVEMENT IN GOMBUSTION-GHAM'BBR IN GOAL-STONES;

.iigt'tlgrh'ule ttfettrt tu it lgtsetttets ttent amt uniting gattini-tte stmt.

TO ALL WHOM IT MAY GONCERN:

Be it known that I, WILLIAM I-I. WHITEIIEAD, of the city of Chicago, in the county of Cook, and State of' Illinois, have invented certain-new and useful Improvements in Gas-Burners for Stoves; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had te the accompanying drawings, making a part of this specification, in which- Figure 1 represents a vertical section in a cylindricalstove.

Figure 2 a reverse view, and l Figure a top or plan view.

Like lettersrefer to the same parts in all of the figures.

The nature of my invention consists in a novel mode of constructing an interior chamber forsupplying atmospheric air in a continuous or unbroken sheet, and at different angles and altitudes, and in providing theunder side witha lining of fire-clay or brick, or other suitable substance, to protect the burner from the ascend-l ing heat.

To enable others skilled inthe art to make and use my invention, I will describe its construction and operation.

The air-chamber G is made circular, oval, or in any other form, in order to t the shell, case, or hre-chamber of the stove or furnace H,to which it is to be applied. In the form shown, the plates A'and B are made in annular rings or disks about two and one-half inches in width, and of a diametersutiicent to t the fire-chamber I. The upper'plate or. disk has an exterior dange, b, turning downwards about three-eighths of an inch, and an interior bevelled and corrugated or serrated Bange, e, projecting inwards and downwards, as shown.

The plate B is similarly constructed and inverted. When' closclyitting the shell H, the Hanges b ande l maybe cut away so as to leave supports only, When placed together and fastened, an annular space, G, extending equally all of the way around, is formed by the union of the right-angled anges b and c, and the near approach to each other ofthe bevelled corrugated projections c andj'. The two plates or disks A and B are so formedrthat when the ilanges b and e are brought together, a small space, a, which is about one-sixteenth of an inch in width, is left for the ow of airifrom the space G into the gaseous products of combustion.

It will he seen that this space a is wavy-or frequently curved from one disk to the other. The object of this is twofold: first, to introduce the. air in a continuous sheet sovthat no part shall escape coming in contact with the air; and second, to increase the line ot' its-admission, so as to injecta suiiicient quantity of air to insure the combustion of the gaseous products of they coal,vand at diierent altitudes and angles, so that it will be commingled with the gases suiiiciently to insurey perfect combustion before leaving the stove. The several curves give the air-currents a variety of directions, some with a downward and some with an upward inclination,.and a large portion horizontally at diicrent heightsrwhich produces a thorough interminglingof air without introducing an injurious quantity. Air is 'admitted into the space G through an 'opening in the shell or case H of the stoveor furnace, and throughia similar opening through thcilnnges b and c. This open-ing is covered by a pipe or hood, E, which is attached bythe roll or bolt F, or by. other suitable means. In order to 'protect this burner from the heat below, I attach an additional disk orplate, Cwhich is provided with a flange, d. This plate or disk Ceonly extends inwards far enough to cover and be protected by the top of the rechamber or iire-brick .I, or the usual fire-brick or iron linings. Between the plates B and C, I insert annular sections made of fire-brick, soapstone,F or other suitable material, which project inwards suciently far to proteet the under plate B of the air-chamber, and as far as the'plates are carried inwards horizontally, as shown-y at iig. 2. This ring l) can be made in as many sections as desired. Three will usually be suiflcient. This gasburner is placed on the top of any ordinary fire-chamber, such as are usually found in coal-stoves ori furnaces, and for a cook-stove it will only need to bc placed at the back ofthe {ire-chamber, at the top of the back lining. This air-chamber materially controls the opening above the fire, so ns to concentrate the unconsumed products ofthe combustion below, and, by'the admi-xture of air with the escaping gases, consume the carbon ofthe coals to a great extent, and it docs not interfere with'feeding in the coal as when points'or' projections are used with the air-chamber, to introduce air centrally. The curved projections will prevent the warping of the plates to any serious extent, and if at any time the space a should become too far closed, the platesean be wedged apart by loosenin` the screws and inserting n' nnilor scrap of iron between the plates.

I do not claim, broadly, hollow annular air-chambers, as they have been heretofore used, with small punctures or holes for air-passages, and located above the fire chamber.

What I claim as new, and desire to secure by Letters Patent, is-

1. The air-chamber, composed of the plates or disks A :11nd B; provided with the flanges or supports b 1nd c, and the interior projections e nndf, arranged so :is tondmit n continuous thin sheet of air, substantially as specified.v A

2. The application of 'thefire-brick or protector D to the under surface of the nir-chamber, substantially as and for the purposesspeced.

3. Th'e `combination :intl arrangement of the plates A, B, :tml C, with the rcbriek or protector D, substantially as and for the purposes specified.

WILLIAM H. WHITEHEAD.

Witnesses:

L. L. BeND, E. A. WEsT. 

